Robison's Manual of radio telegraphy and telephony for the use of naval electricians (1918)
Robison, S. S. (Samuel Shelburne), b. 1867, United States Naval Institute, Todd, David Wooster, Hooper, Stanford Caldwell · Annapolis, Md. : The United States Naval Institute · leaf 53
the free wire willbe found by measurement with a micrometer spark gap to have an alter-nating potential in it, varying from nothing at the middle point, C, to amaximum at either end somewhat similar to the full curve EOF. If at the same time the current in the free wire could be measured, it would… … an incandescent lamp L be connected to the two halves as shown in thefigure, the lamp Avill glow. REFLECTION OF ETHER WAVES. 71. If ether waves impinge on a reflecting surface not normal to theirdirection, they are reflected at an angle equal to that which the reflectingsurface makes with their…
